Make sure you send her lots of cock pictures if you want to woo her. I mean lots of cock pictures. Fewer than 10,000 is embarrassing. She really likes it when you dress your junk up, too. She has a Barbie cloths fetish. And make sure you send some copies to Roald and Anders, too.
Now, both of these guys are very picky about their cock pictures. Anders likes to see his cocks inside the mutilated corpses of small, furry sock puppets.
Roald likes to see his cocks stuck in the hole of .45s, specifically from the disco era - if you know what any of those words mean, you are already on your merry way. Oh, and use glitter. Lots and lots of glitter. If you have a mini disco ball, use it.
It is very important you send these cock pictures to Anders and Roald. If you do not, you have no chance with Petra.
Keep us posted!
Cheers!